Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van hanh cac snippets" » "van hanh code snippets", "van thanh cac snippets", "ban hanh cac snippets", "van anh cac snippets", "van hang cac snippets", "van hanh cat snippets", "van nhanh cay snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("van hanh cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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